OFFSET
1,2
COMMENTS
Row 7 of A212943
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..17
EXAMPLE
Some solutions for n=4
..0..0..0..0....0..1..2..1....3..3..2..0....1..2..3..2....3..1..1..2
..1..0..1..3....1..1..0..2....0..2..1..1....3..1..1..1....0..1..0..0
..3..3..2..3....1..3..3..1....3..1..0..0....3..3..3..1....0..0..3..0
..0..3..0..2....2..0..2..2....1..0..2..3....3..1..3..3....1..1..2..0
..0..2..2..3....1..2..0..0....2..1..1..0....3..1..1..1....2..2..1..0
..0..0..0..3....1..0..2..2....3..3..0..1....3..2..3..0....3..2..2..0
..2..0..2..0....0..1..3..2....0..0..3..2....1..1..0..2....2..3..3..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin May 31 2012
STATUS
approved